Stay-bolt structure.



B. E. D. STAFFORD 6r E. l. DODDS.

STAY BOLT STRUCTURE.

`APPLICATION FILED MAR. 9| 1916.

Patented Jan. 1,1918.

2 snnn'rs-sBEETJ.

l .Il WNTTH 1 1 sheetlavndl said sleeve being iii 561W; 'and the inner pdnddfifjhfe b fsb dupla-jahren is dnpalargin vas STATES- PATEMQFHCE ,l

BENJAMIN E. n. STAFFORD AND min-AN I. nomas, or'rrrrsiaonoirfirENNsYiNANrA, 'AssIoNons To FLANNEBYBQLT: COMPANY, oil'=1=1in-:siimateix,=wennsirrivnimi STAY-nom sTriUeoU i Toall whom it ma concern.-

`-Be it known tiat we, 'BnNJAMiN E. D.` S'rArFo'aD' and ETHAN I. Doimiacitize'ns` ofk the United States, and residents" of Pittsbur' hf, inthe county of Allegheny and State of en'nsylvania, have invented certain new and useful Improvements t in Stay-Bolt Structures; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap'- pertains to makeand use the same. l This invention relates to improvements in stay bolt structures, and more particularly to means for testing the integrit of the stay bolts of bdi1drs',j;tie' abject of t 1e invention bein toprovide sim le and cient means' vvhic` shal'lbe readi y; operab eto testy theI y stay bolt `Withouty removing theV cap of .the 2o stay bolt structure. y 1 y lWith this andoth'erobjects in vievv,the in: vention yconsists in certainnovel features of construction and combinations of parts as hereinafter set forth and pointed outjin l'che '2"5 claims'.

In :the accompanying drawings; Figurei` is aveiv partly in section and partly iii elevation showing one embodiment ofour invention'; Fi 2 is a partial sectional View *3'0" taken at rig it anglesuto Fig. 1;;Fig. va'

fragmentary 'view illustrating a `iiiodiiica.- to'fllof the' Consumi@ Shown in Fi 1 a; 'E F23.; und Fgg? 4, (5526i 7i 8S 195:19, Q 11.2; j 1B`,"14,' `15 ,"16 and 17 ae'vws illustrating various otherfinodilicationsg a hple for "th edlft'oil Off a; 91me; said sleev'efemg erariali thread? edf at a to germ-into me lhad indie -bdiid iiflsq 'threaded GX- t'e'iiorly 'for the acoinino a'tion of an, interdairy` threaded partida: of img' TiidI Sleeve 2 is fiera-ed ieriorly `wa for theroniidedfoi"fsplieii vl head (S imentnfaa, e waving dans di Bpeelaitlionzqt I 1918s Piemon ma mais,

so that ample space provided tono`|`I comandate@ longitudinal f movement fbi, the bolt, and is provided 'with Va 'peripheral flangel disposed betivf'eeii' the rib 9 onther sleeve and slioilldei' 11 oiiQthecp and njf" Vaged by both So :to effect a Water-tight Joint and 'thus'giiard against leakage. The 65' member n12 provided With a tongue` 14 to enter thedriving slot l15V'in1the.bolt head. The tongue may be elongatedin form .and integr'al'with: the body of the IneinbeiA 12,'\ lld it is of such dimensions relatively-to those ofthe slot inih'bdiihdd 'e aan interfere with the lolietudillfnd'lateral miemeat ofthe .'stayf" bolt "Inst of makin tfl, tongfieildi inc@ m17 bday@ the, member 12 as s y fliaiid' 2,., said? 7'5" tongue may bq' ,sepa nenne-inserted inte-Said i' ,2 da ddiated at, 11.1;l

W anita ifi-0 @einem oriiae gewalt for or.

the inner face of the cap. The rotary or driving member 12 is provided with a tenetelf' te. .engage the: lao-lr hee-d .and :is made with an outwardly proieetingthreadfed portion 21 to receive a Jam nut 22, Whereby the portions 18 and 20 are held'tightly against their seats to guard against leakage.: `AILaHg1iflah head-'23E formedt on the outer end of the rotary og driv'pg rnemb g; 12 for the reception ofa Siiitirle' wren'lli. rleoselin the annuler em 11PM-@fend @telnet remy fe" 1.2?, the integrity of th belt mayv be tested. es nrri'ellljly pll'n't'di Tete' embeimeht? ofthe. -imzeitea Shown '..J-6;,'tlie.capfigxloloatedineide instead `of Re, of the. bearing' .Sleeve :lou ill the .,fiei' showt m Eig t, @he hearing is. threaded intendi for 'the aci- CQIIiIOdebe i 0f annular 'cap 4% 'and this ea'pi islfprovilefvvitlra' beveled face' t0 form a' Serf@ .the berekenen@ 'of uw rfey effdljivlnr' memberlT- The mem* ber. 12?)a is. me@ 'rief-' difreised Portion 21a L.. A. terminating Within beaune sleeve. 2.11.1

the jpner Portion of the threaded portion @sie 2,1?" mit 15,1 f.. eig" The fliredef eX Heee-2 le m de W115i er aligner Societ @inrit du' no nforfrlnal ..6 with...

bien@ L'i "lie, Meer@ 5a legesreiifiet eine 11min-e' cap, f

' mourir? fil t' ting ngeniber monnlegdgto timnfandwforgrthat shown in Fig, 11, except that in Fig. 12, the cap is made in two parts 31a 31b screwed. together.

In Eig, `13,.a hemispherical cap 37 is shown, and this is provided with an opening 38 for-the accomn'iodation of the rotary or driving member 39, the latter being formed with a'fonvex portion 4:0 bearing againstthe inner, face .of theoap and with a threaded portion 41 'to' receive a nut 42 having a con cave face to rest against the -oiiter convex face of the cap.l The outwardly projecting portion 41 may heprovided with @s191243 tol receive Si screwdriver. i

The construction shown in Fig. 1li ern bodies a cap 44; having an angiilar exterior withflat outer face and a not t'ogi the rotary or driving mernber 46 reStS againet said Hat outer face of the cap.

In the construction shown in Fie'. 15, the cap 4 lie made with a comparatively large central'openinp; cloeed by a rotary or driving member. 47 having' a beveled portion 48 bearingragainst the inner face of the cap and provided with a tongue 119 to engage the slot of the bolt head. A ring or Washer 50 en-n circilels the neck portion of .the Inernber and Iie'st'sagaingt'the cap-4. The member 4f( ie `provided with bendable lugs, 51 `xvlziih .are niadef toengage the ring ,50, and` thus said member is Coupled te, the Cep 415.! A. ventral enlargement 52 i's provided on the rotary Q1? dririre member 47: t0, 'fee-@ive e wel ter-fv t C' these... el 'ulnlntrhe formmof the invention shown Igigej.4 1,6 and 1T, the. rotary driving member is, I 'nade with a head 53 'having a sliouldei),1 5 4, and a; driver slot 5.5. A split ring 13.6v is?, disposed between the` shoulder 54. of the head.; 5,3 and the cap 5.7. y Y

Various other changes might be made. the detaile of construction of onr 'invention wvithoilt' departing from the spirit. thereof. ori limiting ite. scope. and hence we do not Wish to restrict 'ourselvesA tol the precise de; teile, liefde ser ferm., @XQG-PMS (1121311124 .by 'i tl? were 0f fllearrended Claires.- e

.erede flililyffleerribed Qur .ier-@eilen what. WQ; c fum" 3.?. lle-yf and" deert. te eiire '5.5i

1;-, In, fi Slay belt Structure. the Combinar @1.0.11 'with a, Starr belt. Qi. .fiv testina mem-.berlegngaging the. head of the bolt and ine-'ans fop. sivvelgin'fr eaid testing. member whereby. it`

' 'l be, turned Yi'ibbut disinengb ring,V hf Stre-ture tetes@ the integrio?v the A .stay 'bolt'. .Strutnre,

embers. el ser;

.tay battre betting,

e ing parrot 'sa t i.

the e belt "ca i a testing*v memberemearis foruswivelmg said testing-'member' tween theca'p' and the end ofthe bolt 4seid testing!` t l member adapted toengage the fatter `for apf,y force" thereto tofftest the lyin` aturn'f Integrity/of" tllgbolt, Vand means whereby a .turninforoemay be applied to saidtest- 45.y v A` stay structure eomprisin`v a-"stay l n bolthavin'gta head, anbearingimemr r-for ".aadfhead, acap,f`a`nd arotary Inemberheld" in plaeefln'the cap. to engagethe head of .for .testing I the integrity of the f5; a sta bolt structure, Athe combinatio'nrof a bo t and a "testin'ggmemberfone f said parte having a projection and the turning force maybe "other part having a recess to receive said y prolection where y y applied tothefbolt, and means for 'supporting'said teetinfmember.

. t A @my `bo' bolt, a ca m lace` y the cap to engagethe endof the structure comprisinga stay y t, said rotary testing member having a" -part adapted `furtheriweption` ofa tool for a forcefto rsaid `.member to 1 test theintfpagritgofthevbolt.v

" 7, In a1 :stayl PPly ` ythereof, said: means adapted to Aen- 'g'agethe' endsof the ybolt for applying a` force thereto to test its integrity. "i

8.l Inaetay bolt structure, the combma tof the bolt' without" removin ,and a rotary testing mem er held n y y ltetructure, thelcomhina" option with yarstay bolt,` and a capgfofvmeans ein lace by the cap and rotative inde-'f `Witnesses: j

having a head mounted in said bearing mem? A ber,a cap on the bearing*lneniberrand'a."` `manuell Aoperabletesting member Shaving, 1' a part disposed betweenfthe, bearingmember and said cap, 'said testing member having j a part to engage the end oflthe holt, fora 1 9. In'fa `stay boltz thefciomb tion with a stay bolt `hauling ahead,a tlzear` "g ing y member for the head offthefboltg; and

acapfenga n said bearin member,` 'cfa' i eg t rotary mem r to engage-Sindkr capa1-idthe headof the'bolt.y for applying rotarynfgme testin the inte n n y y v n a stay olt structure5 thecombination with a. bearing sleeve, a vstay bolt yhavf` ing a `slottedhead.mounted in'saidfslefeve,` f and a cap screwed*y on saidbearing sleeve",

ofza rotariy member fortestingthe inte 'ty of the botl and *havingl a part'di be` .tween thelcap and the end"of.theizeax'fing y sleeve and engaedqbyfbotm vsaidfurtary* 'iwitvh/atongue/entering' f the v'slot in the boltchead, and said-rotary f member .also having aftoel` receiving'y parir".y

member lprovide projecting v throu hwsaid t cap.

In testmonyjjw7 ereofw`e have signed sp ifcation in the 'presence ofltwn vsubeazxrib ai m ma t, 'uit d {WI-himmnw' f .l

nfsTAFFoRDQ t y 

